Gas-stove



(No Model.)

7 J. KBELING.

GAS STOVE.

No. 386,473. Patented July 24, 1888.

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INVENTOR .7 BY a E ATTORNEYS.

N. PETERS Pholo-Lilhoguphor. Wmhingmn. D c.

time STATES ATENT JOHN KEELING, OF BROOKLYN, NE\V YORK.

GAS-STOVE.

EYECIPICATION forming part of Letters Patent No. 386,473, dated July 24, 1888.

Application filed June 10, 1984. Renewed January 7. 18m. Serial No. 223,7]8. (No model.)

To aZZ whom, it may concern.- I

Be it known that l, JOHN KEELING, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Gas-Stoves, of which the following is a full, clear, and exact description. Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure l is a plan view of my improvement. Fig. 2 is a sectional side elevation of the same, taken through the line at at, Fig. l.

The object of this invention is to promote efficiency in the use of gasstoves and economy in consumption of gas in such stoves.

The invention consists in a gas-stove constructed with the mouth of the mixing-chamher in the burner-plate and the perforated mixing-plate covered by a plate provided with a circle of curved slots near its outer edge.

The burnerplate is made with one or more circles or squares of perforations surrounded by flanges and surrounding the mouth of the mixing-chamber, whereby jets of air will be projected into the circle of burning gas, as will be hereinafter fully described.

A represents the burnenplate,which is made with legs B of such a length as to raise the said plate to a convenient height.

In the center of the burner-plate A is formed a circular opening, in which is formed a downwardly-projecting mixing chamber, O, which tapers downward, and is thus in the form of an inverted frustum of a hollow cone.

D is the gasburner, which is attached to the end of a gaspipe, E, and passes through and is attached to the center of a cross-bar, F, extending across the open lower end of the mixingehamber O, and formed upon or attached to the lower edge of the wall of the said chant her. The gas-pipe E'passes through a hole in the side flange of the burner-plate A, and is supported by the said flange.

In the wall of the mixing-chamber O, a little below the burner-plate A, is formed a shoulder, G, upon which rests a plate, H, of perforated sheet metal or wire-gauze to minutely divide the stream of gas escaping from the burner l), and thus cause it to be thoroughly mixed with the air passing up through the said chamber.

Upon the burner-plate A, at the mouth of the mixing-ehamber O, is formed an annular flange, l, within hich is placed a circular cover, J. Upon the edge of the cover J is formed a downwardly projecting annular flange, K, the lower edge of which rests upon the perforated plate II above the shoulder G of the mixing-chamber O.

In the cover J, near its edge, are formed three or more slots, L, which are curved in the arcs of circles, and are arranged in line with each other, as shown in Fig. 1. The mixed air and gas escape from the mixingchamber 0 through the slots L, and are burned as they issue from the said slots, forming an annular flame.

Upon the burner-plate A are formed four (more or less) radial flanges, M, the top edges of which are slightly inclined upward, as shown in Fig. 2, and upon which rests the vessel to be heated.

In the bu rncr-plate A, and outside the flange I, are formed one or more circles or squares of perforations, N, through which jets of air rise into the circle of flame as it is deflected outward by the bottom of the vessel to be heated. This series of perforations becomes the burner proper when the stove is at work. Each jet of air forms adistiuct jet of flame, and thus intensities the heat and insures the combustion of all the inflammable parts ofthe gas, so that the stove will not give off any offensive odors, and no soot will be deposited upon the bottom of the vessel being heated. Around each circle or square of perforations N is formed a flange,O,of corresponding shape, to prevent air from sweeping over the surface of the burner-plate and interfering with the proper combustion of the gas.

\Vith my improvement the perforated plat-e H cannot become heated and cause the gas to light back below the said plate.

\Vith this improvement, also,the perforated plate will be protected from the oxidizing effect of the air upon it when heated, by which the perforated plates in ordinary gasstoves are very soon destroyed.

Having thus described my invent-ion, I claim as new and desire to seen re by Letters Patent- 1. In a gas-stove, the burner-plate A, having a series of perforations, N, surrounding the mouth of the mixing-chamber, flanges O, surrounding the series of perforations, whereby jets of air will be drawn into the burninggas and the perforations N become the burner proper when the stove is at work, the mixingchamber 0, and the cover J, having a series of slots, all as shown and described.

2. In a gasstove, the burner-plate A, provided with a mixing-chamber open at both ends and formed with the interior shoulder, G, near its upper end, in combination with the Wire-gauze I-I, resting on the shoulder G, and the cover J,having a series of curved slots, L, and a depending flange, K, supported by the shoulder G, and a gas-burner entering the lower end of the mixing-chamber, whereby the air and gas passing up through the chamber O and gauze H will be thoroughly mixed in the space between the gauze and the under side a of plate J before issuing through the openings L, substantially as set forth.

3. In a gas-stove, the burner-plate A, provided with a circular depending mixingchamber, O, open at both ends and provided with a circular shoulder, G, around its upper end, the raised flange O, the series of openings N in the plate'A, between the flange and mouth of the chamber 0, the cover-plate J, having a depending circular flange, K, resting on shoulder G, the wire-gauze H, resting on shoulder G below flange K, and a burner, D, held in the lower end of chamber 0, as described, whereby thegas and air will be thoroughly mixed between the cover-plate and wire-gauze before ignition,andjets of air will mix through openings N with the flame to cause the complete combustion of the gas.

4. A gas-stove consisting, essentially, in a burner-plate, A, provided with circular flanges O I, the latter being in a lower plane than the former, a series of openings, N, between said flanges and independent of the chamber 0,

radial flanges M, a circular opening, in which is formed the downward-projecting mixingchamber 0, having a shoulder, G, around its upper portion, the cover-plate J, provided with a depending flange, K, and a circular series of slots, L, the top of the plate J being flush with the top of flange I, the Wiregauze H, resting on shoulder G below flange K, and the gas burner, substantially as set forth.

. JOHN KEELING. \Vitnesses:

JAMES T. GRAHAM, C. SEDGWICK. 

